Re: Sil 3512 and Seagate ST3802110AS

[Tejun Heo <htejun@gmail.com>]

Harsha Padmanabha wrote:
> I am trying to get sata_sil running on a MPC8349(PPC) board, I runto the 
> following errors. I cannot upgrade my kernel to the latest one since 
> most of my changes for MPC8349 to work  are for 2.6.11.
> 
> 1) How can i patch the latest release of libata for 2.6.11 without 
> having to change to 2.6.17

It's difficult.  You'll have to update not only libata but also some 
SCSI midlayer stuff too.

> 2) I have tried SIL 3112 card with the same results
> 3) I have also tried different hard drives like samsung and WDC
> 
> Please let me know what i can do to get this running.
> sda:<3>ata_scsi_dump_cdb: CDB (2:0,0,0) 28 00 00 00 00 00 00 00 08
> ata_scsi_translate: ENTER
> ata_scsi_rw_xlat: ten-byte command
> ata_sg_setup: ENTER, ata2
> ata_sg_setup: 1 sg elements mapped
> ata_fill_sg: PRD[0] = (0x3748000, 0x1000)
> ata_dev_select: ENTER, ata2: device 0, wait 1
> ata_tf_load_mmio: hob: feat 0x0 nsect 0x0, lba 0x0 0x0 0x0
> ata_tf_load_mmio: feat 0x0 nsect 0x8 lba 0x0 0x0 0x0
> ata_tf_load_mmio: device 0xE0
> ata_exec_command_mmio: ata2: cmd 0x25
> ata_scsi_translate: EXIT
> ata_scsi_error: ENTER
> ata_eng_timeout: ENTER
> ata_qc_timeout: ENTER
> ata2: command 0x25 timeout, stat 0x58 host_stat 0x2
> ata_sg_clean: unmapping 1 sg elements
> ata2: status=0x58 { DriveReady SeekComplete DataRequest }
> SCSI error : <1 0 0 0> return code = 0x8000002
> sda: Current: sense key: Aborted Command
>     Additional sense: Scsi parity error
> end_request: I/O error, dev sda, sector 0
> Buffer I/O error on device sda, logical block 0
> ata_qc_complete: EXIT
> ata_qc_timeout: EXIT
> ata_eng_timeout: EXIT
> ata_scsi_error: EXIT

Your first DMA command failed.  IIRC, there was one errata fix which 
fixes a possible controller lock up problem on 3512 and 3114 but it only 
happens under relatively heavy IO and 3112 isn't affected, so I don't 
think you're experiencing that.

At the first glance, your hw seems to have a problem w/ PCI bus 
mastering.  Does any other device live on the same bus - a NIC maybe? 
If so, can it do DMA okay?

-- 
tejun